Since the fall of 2014, students in a Carroll College class on Elections have been running exit polls on Election Day. We covered the general elections in November 2014, November 2016 and November 2018, and also the May 2017 special election. We use single-page surveys with the questions designed by Carroll students and Dr. Street, who teaches in the Political Science department. We cover polling places all across Lewis and Clark County, with the precincts sampled at random. In 2018, we also sent teams to conduct surveys in Great Falls and Billings. The survey does not cover the people who opt to vote by mail.

Students ask people to participate as the voters leave the polling place. Those who opt to take part take a clipboard so that they can fill out the survey in private if they like. Students are trained to approach the very next person who exits the polling place, once the clipboard is available again, so as to avoid showing any preference for polling certain kinds of voter. We have been delighted that so many people are willing to participate—an average of about 800 each year!

Students then write research papers based on the data collected, allowing them to test out their ideas about why people vote the way they do, and also to apply the statistical tools that they have learned in class to understand real-world data.

The exit poll projects were approved by the Carroll College IRB. The anonymized data are posted here so that other students, scholars, journalists or members of the public can learn from the data. Since the voters of Montana gave us the information we feel that it should be in the public domain.

If you have any questions about the project, please contact Dr. Alex Street,


Submissions from 2018


Carroll College 2018 Exit Poll, Alex Street

Submissions from 2017


Carroll College 2017 Exit Poll, Alex Street

Submissions from 2016


Carroll College 2016 Exit Poll, Alex Street

Submissions from 2014


Carroll College 2014 Exit Poll, Alex Street